diff --git a/paymentserver.nix b/paymentserver.nix
index a3a6db4422050c6b601f28c396e83935e33b8e75..dedc6453ee28dd910f1e6b402b390790f3ff2af6 100644
--- a/paymentserver.nix
+++ b/paymentserver.nix
@@ -30,6 +30,7 @@ let
       rts = null;
       template-haskell = null;
       terminfo = null;
+      text = null;
       time = null;
       transformers = null;
       unix = null;